FITTING AND TURNING NQF LEVEL 4 - Department of Higher Education and ...

NATIONAL CERTIFICATES (VOCATIONAL) SUBJECT GUIDELINES

FITTING AND TURNING NQF LEVEL 4

IMPLEMENTATION: JANUARY 2015

Fitting and Turning Level 4 Subject Guidelines (January 2015) National Certificate (Vocational)

INTRODUCTION

A. What is Fitting and Turning about? Fitting and Turning is practiced by individuals in a trade-related occupation (career artisans) and within the broader sub-field of Manufacturing, Engineering and Related Technology. Individuals in this occupation need to apply a wide range of mechanical technology and skills, namely, in machining, installation, maintenance, repair, overhaul, assembly of machinery, associated equipment and mechanical sub-systems. Fitter and Turners, as they are called, are utilised in the manufacturing, mining, transport, food, chemical, petro-chemical and electrical power industries. They help to develop and expand the national and global economy.

B. Why is Fitting and Turning important in the Engineering Studies learning programme? Fitting and Turning brings the range of mechanical technologies to the practical reality of maintenance and repair of machines, associated equipment and mechanical subsystems. Through its application, Fitting and Turning expands from its traditional skills base into new mechanical technologies derived from the mechanical engineering discipline.

C. The link between Fitting and Turning Learning Outcomes and the Critical and Developmental Outcomes Thinking and problem-solving skills: Identify and solve problems in which responses display that responsible decisions using critical and creative thinking have been made. Use different functions and make corrective adjustments in problematic situations.

Independence and self-management skills: Organise and manage oneself and one's activities responsibly and effectively. Plan sequences of operations based on job instructions and adjust equipment appropriately.

Research skills: Collect, analyse, organise and critically evaluate information. Examine work pieces for Turning and non-conformance with specifications. Measure work pieces for accuracy.

Learning skills: Reflect on and explore a variety of strategies to learn more effectively. Gain experience and knowledge through application of different machining.

Employment seeking skills: Explore education and career opportunities. Acquire the confidence to succeed by understanding the practical application.

Entrepreneurship: Develop entrepreneurial opportunities. Produce a sense of self worth through confidence.

D. Factors that contribute to achieving Fitting and Turning Learning Outcomes A learning environment conducive to teaching and learning through effective student support, motivation, commitment, a positive attitude and emphasis on safety

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 Exposure to the mechanical engineering technology environment that will stimulate interest in the subject

Qualified and competent lecturers who will encourage students to develop their knowledge and skills

Availability of appropriate workshop tools, measuring devices, machinery and equipment.

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Fitting and Turning Level 4 Subject Guidelines (January 2015) National Certificate (Vocational)

FITTING AND TURNING- LEVEL 4 CONTENTS

1. DURATION AND TUITION TIME 2. SUBJECT LEVEL OUTCOMES AND FOCUS 3. ASSESSMENT REQUIREMENTS 3.1. Internal assessment 3.2. External assessment 4. WEIGHTED VALUES OF TOPICS 5. CALCULATION OF FINAL MARK 6. PASS REQUIREMENTS 7. SUBJECT AND LEARNING OUTCOMES 7.1 Pumps 7.2 Compressors 7.3 Fluid power systems ? Hydraulics 7.4 Fluid power systems - Pneumatics 7.5 Surface Grinder 7.6 Centre Lathe 7.7 Milling Machine 7.8 CNN Lathe (Turning) 7.9 CNC Milling RESOURCE NEEDS FOR THE TEACHING OF FITTING AND TURNING- LEVEL 4 7.1. Physical resources 7.2. Human resources 7.3. Other resources

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1. DURATION AND TUITION TIME This is a one-year instructional programme comprising 200 teaching and learning hours. The subject may be offered on a part-time basis provided the student meets all the assessment requirements. Students with special education needs (LSEN) must be catered for in a way that eliminates barriers to learning.

2 SUBJECT LEVEL OUTCOMES AND FOCUS

SAQA QUALIFICATION 50441

A focus for Level 4 students is the need to emphasise the divergence of fluid power systems from CNC machining. The curriculum designers recommend that these topics are treated as areas of specialisation.

Exit level Outcome 1: Develop skills in working with whole machine-systems including pumps, compressors and fluid power systems illustrating precision in machining skills.

Associated Assessment Criteria: The ability to work with whole machine-systems including pumps, compressors and fluid power systems illustrating precision in machining skills is demonstrated

Exit level Outcome 2: Develop knowledge related to fitting placed alongside the introduction of new levels of complexity in machining processes.

Associated Assessment Criteria: Complex machining processes are performed while illustrating knowledge related to fitting processes.

3 ASSESSMENT Information on internal and external assessment provided in this document aims to inform, assist and guide lecturers to plan the effective teaching of the subject. The Assessment Guidelines accompanying this document provide detailed information for planning and conducting internal and external assessments.

3.1 Internal assessment (50 percent) Detailed information regarding internal assessment and moderation is outlined in the current Internal Continuous Assessment (ICASS) Guideline document provided by the Department of Higher Education and Training (DHET).

3.2 External assessment (50 percent) A national examination is conducted annually in October or November by means of a paper(s) set and moderated externally. A practical component, the Integrated Summative Assessment Task (ISAT), will be included in the external assessment.

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Fitting and Turning Level 4 Subject Guidelines (January 2015) National Certificate (Vocational)

Detailed information regarding external assessment and moderation is outlined in the `National Policy on the Conduct, Administration and Management of the Assessment of the Assessment of the National Certificate Vocational', Gazette Number 30287, dated 12 September 2007.

4 WEIGHTED VALUES OF TOPICS (Topic weighting and time allocation)

Topics

*Teaching Hours Weight % Duration (hrs) Theory (hrs) Practical (hrs)

1 Pumps

10%

20

8

12

2 Compressors

10%

20

8

12

3 Fluid Power Systems - Hydraulics

10%

20

8

12

4 Fluid Power Systems - Pneumatics 10%

20

8

12

5 Surface Grinder

10%

20

8

12

6 Centre Lathe

12%

25

10

15

7 Milling Machine

12%

25

10

15

8 CNC Lathe (Turning)

13%

25

10

15

9 CNC Milling

13%

25

10

15

Total 100%

200

80

120

*Teaching Hours refers to the minimum hours required for face to face instruction and teaching. This excludes time spent on revision, tests and internal and external examinations and assessment. The number of allocated teaching hours is influenced by the topic weighting, complexity of the subject content and the duration of the academic year.

5 CALCULATION OF FINAL MARK

Internal assessment mark: Examination mark:

Student's mark/100 x 50 = a mark out of 50 (a) Student's mark/100 x 50 = a mark out of 50 (b)

Final mark:

(a) + (b) = a mark out of 100

All marks are systematically processed and accurately recorded to be available as hard copy evidence for, among others, reporting, moderation and verification purposes.

6 PASS REQUIREMENTS

A student must obtain at least 50 percent in ICASS and 50 percent in the examination to achieve a pass in this subject.

7 SUBJECT AND LEARNING OUTCOMES

On completion of Fitting and Turning Level 4, the student should have covered the following topics:

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Topic 1: Topic 2: Topic 3: Topic 4: Topic 5 Topic 6 Topic 7 Topic 8 Topic 9

Pumps Compressors Fluid Power Systems - Hydraulics Fluid Power Systems - Pneumatics Surface Grinding Centre Lathe Milling Machine CNC Lathe (Turning) CNC Milling

Topic 1: Pumps

Subject Outcome 1.1: Explain correct safety procedures and care when installing / maintaining pumps

Range:

Safety procedures include excerpts from the Driven Machinery Regulations. Safety measures include the impact on human beings, machines, equipment, materials and the environment. Pump maintenance safety includes the application of personal protective equipment, assembly, dismantling start-up procedures, protective guards and other best practice procedures. Always use the manufacturers' service manual as a guide to the effective maintenance and installation procedures.

Learning Outcomes: The student is able to: Explain worksite health and safety practices. Explain the importance of a clean working area and good housekeeping. Explain the safety precautions before and after replacing pump components. Describe the need for using the correct tools, equipment, cleaning materials and

personal protective equipment.

Subject Outcome 1.2: Demonstrate an understanding of pumps

Range: Pump classifications include: Centrifugal pumps - both single and multi-stage pumps; Rotary pumps - gear pump, helical screw gear pump, vane pump and flexible impeller pump; Reciprocating pumps - piston pump, plunger pump and steam and air-driven reciprocating pumps Centrifugal pump terminology ? casing, impeller, vortex, vacuum, stuffing box assembly, bearings, shaft assembly, inlet, outlet, single-stage and multi-stage, balancing disc. Reciprocating pump terminology - single and two-stage pumps; Single and double acting pumps, difference between plunger and piston, inlet and outlet valves, suction and delivery head, stuffing box assembly, plunger pump with external packing, plunger pump with internal packing, the application of air chambers and reasons for use. Rotary pumps inlet, outlet rotor, direction of flow, partial vacuum, vanes, eccentric cam.

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